living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Reptilia Linnaeus, 1758 - reptiles
               Subclass Anapsida Osborn, 1903 - anapsids
                 Order Testudines Wagler, 1830 - turtles
                   Suborder Casichelydia (Gaffney, 1975) see Order Casichelydia Gaffney, 1975
                     Infraorder Pleurodira Cope, 1864 see Suborder Pleurodira Cope, 1864
                       Family Chelidae Gray, 1825
                         01 Genus Chelodina Fitzinger, 1826
                         02 Genus Elseya Gray, 1867
                         03 Genus Emydura Bonaparte, 1836
                         04 Genus Pseudoemydura see Genus Pseudemydura Siebenrock, 1901
                         05 Genus Batrachemys Stejneger, 1909 see Subgenus Batrachemys Stejneger, 1909
                         06 Genus Chelus Duméril, 1806
                         07 Genus Hydromedusa Wagler, 1830
                         08 Genus Mesoclemmys Gray, 1873
                         09 Genus Phrynops Wagler, 1830
                         10 Genus Platemys Wagler, 1830